Performance analysis of a solar window incorporating a novel rotationally asymmetrical concentrator

Siti Hawa Binti Abu-Bakar, Firdaus Muhammad-Sukki, Daria Freier, Roberto Ramirez-Iniguez, Tapas Kumar Mallick, Abu Bakar Munir, Siti Hajar Mohd Yasin, Abdullahi Abubakar Mas Ud, Nurul Aini Bani

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    Abstract

    The race towards achieving a sustainable zero carbon building has spurred the introduction of many new technologies, including the BIPV (building integrated photovoltaic) system. To tackle the high capital cost of BIPV systems, LCPV (low-concentration photovoltaic) technology was developed. Besides the reduction
    of cost, the LCPV technology also produces clean energy for the building and promotes innovative architectural design. This paper presents a novel type of concentrator for BIPV systems. This concentrator, known as the RADTIRC (rotationally asymmetrical dielectric totally internally reflecting concentrator), was
    incorporated in a small double glazing window. The RADTIRC has a geometrical concentration ratio of 4.9069x. A series of experiments were carried out to evaluate the performance of the solar PV window both indoors and outdoors. It was found that the RADTIRC-PV window increases the short circuit current
    by 4.13x when compared with a non-concentrating solar PV window. In terms of maximum power generation, the RADTIRC-PV window generates 0.749 W at normal incidence, 4.8x higher than the nonconcentrating counterpart.
    Original languageEnglish
    Pages (from-to)181-192
    Number of pages12
    JournalEnergy
    Volume99
    Early online date12 Feb 2016
    DOIs
    Publication statusPublished - 15 Mar 2016

    Keywords

    • solar photovoltaic
    • solar concentrator
    • rotationally asymmentrical concentrator
    • building integrated photovoltaic systems

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